This classmate opened his eyes again.
Turning her head to look at the clues on her husband's face, Ye Sujin thought about the information her husband gave her when he called her last time: It seems that this husband may really want to rob her sons.
"How?" Ye Sujin asked the husband of the big surgeon for his opinion. She works in anesthesia, so she doesn't know much about some surgical procedures.
On stage, it was surprisingly quiet.
After the second son was replaced as the chief surgeon and became an assistant, he hardly said a word, which made her confused.
The wife of an anesthesiologist, you can't say that you don't understand the way at all, otherwise you wouldn't ask such a question. Cao Yudong was aware of this, and told his wife: "Be quiet and watch, don't make the children want to count."
To say that this operation is the most important and difficult in this place is definitely not just a "small" operation that is difficult, but a technical level.
Where is the checkpoint? Carefully recalling the surgical process and purpose introduced before, you will find that this operation uses a single ventricle (right ventricle) to supply blood to both sides of the pulmonary artery, which inevitably involves a distribution ratio issue.
There is only one ventricle left, what is the appropriate ratio of how much blood should be distributed to the aorta and pulmonary aorta
It is definitely not such a simple and crude algorithm of 50% to 50%.
The systemic circulation requires more blood flow than the pulmonary circulation each time the heart pumps. For example, the diameter of the aorta of a normal healthy person is thicker than that of the pulmonary aorta. This is common sense.
What is the distribution ratio? Some people say it is sixty to forty, or a few dozen to a few dozen.
There is no absolute conclusion on this value. The details of each person's physical condition are different, and doctors need to adjust it according to the actual situation of the operation. It should be mentioned here that it is very common for this disease, including the baby who is currently undergoing surgery, to be accompanied by pulmonary hypertension. It's just that the baby was lucky because the pulmonary hypertension did not reach the critical value that triggered Fonton's surgery. It is equivalent to saying that if the doctor suddenly corrects all the pulmonary hypertension, the baby is afraid that the body may not be able to adapt in a short time and something will happen. Therefore, this operation is called palliative surgery, not to completely cure pulmonary hypertension.
Physicians need to weigh these factors holistically when considering a final decision.
After determining the distribution ratio of the two, the doctor will make the blood vessels on both sides as thick and thin as possible to complete the precise distribution.
Cao Yudong calmly said that the reason for letting the children think of numbers by themselves was based on the performance of Xie, and he thought that these problems could not be difficult for her.
All kinds of estimates are her strong point, that's right. Perhaps because of this, Xie Wanying performed every step very steadily.
When choosing the right type of artificial tube to connect the pulmonary artery to the right ventricle, she was quite confident that she could do it in one step.
Steady, if it is used in other operations, it will undoubtedly help her save a lot of operation time. However, today's surgery is too prone to fatigue.
Xie Wanying did almost the same thing. She raised her head and glanced at the electronic clock hanging on the wall. Every second displayed by the clearly beating red numbers on it was shocking.
Unknowingly, the operation time was approaching the limit, nearly 60 minutes, which was completely beyond her own estimate.
The sense of anxiety that crept through her had never been tried before.
She served as an assistant in Zhu Xing's operation that was also approaching the time limit last time, so there was no pressure. This time the identity became the chief surgeon, and she did the key step. Before the operation, she persuaded the family members to let the child undergo the operation. If it failed—